Viperidae

Broad-banded copperhead — Agkistrodon laticinctus

Common cottonmouth — Agkistrodon piscivorus

Taylor’s cantil — Agkistrodon taylori

Western bush viper — Atheris chlorechis

Great lakes bush viper — Atheris nitschei

Variable bush viper — Atheris squamigera

Puff adder — Bitis arietans arietans

East African Gaboon viper — Bitis gabonica

Rhinoceros viper — Bitis nasicornis

Ethiopian mountain adder — Bitis parviocula

West African gaboon viper — Bitis rhinoceros

Namaqua dwarf adder — Bitis schneideri

Yellow-blotched palm viper — Bothriechis aurifer

Guatemala palm pitviper — Bothriechis bicolor

Side-striped palm viper — Bothriechis lateralis

Honduran palm viper — Bothriechis marchi

Central American eyelash palm viper — Bothriechis nigroadspersus

Black-speckled palm viper — Bothriechis nigroviridis

Mexican palm viper — Bothriechis rowleyi

Terciopelo — Bothrops asper

Common lancehead — Bothrops atrox

Two-striped forest-pitviper, Green jararaca — Bothrops bilineatus bilineatus

Caatinga lancehead — Bothrops erythromelas

Brazilian lancehead — Bothrops moojeni

Speckled forest-pitviper — Bothrops taeniatus taeniatus

Malayan pitviper — Calloselasma rhodostoma

Sahara horned viper — Cerastes cerastes cerastes

Arabian horned viper — Cerastes gasperetti gasperetti

Bornean pitviper — Craspedocephalus borneensis

Flat-nosed pitviper — Craspedocephalus puniceus

Sri Lankan pitviper — Craspedocephalus trigonocephalus

Eastern diamondback rattlesnake — Crotalus adamanteus

Queretaran dusky rattlesnake — Crotalus aquilus

Mexican dusky rattlesnake — Crotalus armstrongi

Western diamondback rattlesnake — Crotalus atrox

Mexican west-coast rattlesnake — Crotalus basiliscus

Santa Catalina island rattlesnake — Crotalus catalinensis

Sidewinder — Crotalus cerastes cercobombus

Arizona black rattlesnake — Crotalus cerberus

Northwestern neotropical rattlesnake — Crotalus culminatus

Cascabel rattlesnake — Crotalus durissus durissus

Cascabel rattlesnake — Crotalus durissus terrificus

Timber rattlesnake — Crotalus horridus

Banded rock rattlesnake — Crotalus lepidus klauberi

Rock rattlesnake — Crotalus lepidus lepidus

Speckled rattlesnake — Crotalus mitchellii

Black-tailed rattlesnake — Crotalus molossus molossus

Mexican rock rattlesnake — Crotalus morulus

Northern Pacific rattlesnake — Crotalus oreganus

Ornate black-tailed rattlesnake — Crotalus ornatus

Mexican lance-headed rattlesnake — Crotalus polystictus

Twin-spotted rattlesnake — Crotalus pricei miquihuanus

Southwestern speckled rattlesnake — Crotalus pyrrhus

Mexican pygmy rattlesnake — Crotalus ravus

Huamantlan rattlesnake — Crotalus scutulatus salvini

Panamint rattlesnake — Crotalus stephensi

Cross-banded mountain rattlesnake — Crotalus transversus

Yucatan neotropical rattlesnake — Crotalus tzabcan

Aruba island rattlesnake — Crotalus unicolor

Prairie rattlesnake — Crotalus viridis viridis

Ridge-nosed rattlesnake — Crotalus willardi meridionalis

Palestine viper — Daboia palaestinae

Western Russel’s viper — Daboia russelii

Eastern Russel’s viper — Daboia siamensis

Chinese moccasin — Deinagkistrodon acutus

Khosatzki’s saw-scaled viper — Echis khosatzkii

Oman saw-scale viper — Echis omanensis

Mc Mahon’s desert viper — Eristicophis macmahoni

South American bushmaster — Lachesis muta

Central American bushmaster — Lachesis stenophrys

Blunt-nosed viper — Macrovipera lebetinus obtusa

Blunt-nosed viper — Macrovipera lebetinus turanica

Central American jumping viper — Metlapilcoatlus mexicanus

Black-tailed horned pitviper — Mixcoatlus melanurus

Armenian mountain viper — Montivipera raddei raddei

Wagner’s viper — Montivipera wagneri

Taiwan mountain pitviper — Ovophis makazayazaya

Tonkin pitviper — Ovophis tonkinensis

Dunn’s hognose viper — Porthidium dunni

Slender hognose viper — Porthidium ophryomegas

Okinawa habu — Protobothrops flavoviridis flavoviridis

Bourret’s pitviper — Protobothrops jerdonii bourreti

Red-spotted pitviper — Protobothrops jerdonii xanthomelas

Mangshan pitviper — Protobothrops mangshanensis

Brown spotted pitviper — Protobothrops mucrosquamatus

Western pygmy rattlesnake — Sistrurus miliarius streckeri

Prairie massasauga — Sistrurus tergeminus

White-lipped tree viper — Trimeresurus albolabris

Banded pitviper — Trimeresurus fasciatus

Philippine pitviper — Trimeresurus flavomaculatus

Kikushi habu — Trimeresurus gracilis

Gumprecht’s green pitviper — Trimeresurus gumprechti

White-lipped island pitviper — Trimeresurus insularis

Large-eyed pitviper — Trimeresurus macrops

McGregor’s pitviper — Trimeresurus mcgregori

Pope’s pitviper — Trimeresurus popeiorum

Shore pitviper — Trimeresurus purpureomaculatus

Chinese green tree viper — Trimeresurus stejnegeri stejnegeri

Sumatran pitviper — Trimeresurus sumatranus

Beautiful pitviper — Trimeresurus venustus

Vogel’s green pitviper — Trimeresurus vogeli

Wagler’s pitviper — Tropidolaemus wagleri

Nose-horned viper — Vipera ammodytes ammodytes

Asp viper — Vipera aspis aspis

Lataste’s viper — Vipera latastei gaditana

Steppe meadow viper — Vipera renardi